Improvement in thrashing-machines



JOHN A. L'UTZ.

Improvement in Thrashing-Machines.

Patented June 4,1872.

3913mm I gamut:

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PATENT OFFICE.

JOHN A. LUTZ, or BUGYRUS, onro.

IMPROVEMENT IN THRASHlNG-MACHINES.

Specification forming part of Letters Patent No. 127,494, dated June 4,1872.

' Specification describing a new and useful Improvement in Thrashin g Machines, invented by J 'OHN A. LUTZ, of Bucyrus, in the county ofCrawford and State of Ohio.

Figure 1 represents a vertical longitudinal section of my improvement inthrashing-machines. Fig. 2 is an end view of the same.

Similar letters of reference indicate corresponding parts.

This invention has for its object to adapt an ordinary grain-thrasherfor immediate use in cleaning timothy. At present, thrashing-machines,though provided with means for cleanin g wheat, are not arranged toclean timothy, for which, consequently, a second machine, aclover-huller, must be used subsequent to the process of thrashing. Thismakes the manipulations of timothy both tedious and costly. My inventionconsists in providing an ordinary thrashin g-machine with means wherebyit can be used for cleaning timothy-i. 0., with an additional peculiarset of sieves secured in the shoe in place of the wheat-riddles.

A in the drawing represents the ordinary fan attachment of athrashing-machine; B, its frame. 0 is the vibrating shoe, in the lowerpart of which the ordinary wheat-riddle is placed (but not shown) whenwheat is to be cleaned. The said wheat-riddle is exposed to the blast ofthe fan. My invention consists in the arrangement of two additionalriddles or sieves, aand b, which are placed in the shoe 0 higher thanthe wheat-riddle, when the latter is removed, and back of a shield, d,which protects them from the blast of the fan, The up per riddle onprojects considerably beyond the lower, as shown, and connects with atrough, 6, into which it discharges all unhulled seeds and remainingheads or parts of heads. From the trough e such material is conveyed tothe elevator, which is slightly lengthened for the,

purpose, and therein carried back to the thrashing apparatus forsubsequent action. The upper riddle has its outer part made with largermeshes than the inner, as indicated in Fig. 1, so as to use such coarsepart only as a conveyer for the larger material to' the trough e. Thesecond riddle b completesthe process, and discharges into a trough, f.

When wheat is to be thrashed the riddles a b are taken off and ordinarywheat-riddles put .in their place.

- Having thus described my invention, I claim as new and desire tosecure by Letters Patent- The combination of fan A, shield d, riddles ab, and troughs e f, all constructed and arranged substantially as andfor the purpose described.

J. A. LUTZ.

Witnesses:

S. R. HARRIS, O. H. RowsE.

